Re: 47 V8 ignition mystery
Tonight I tested for vacuum leaks around the manifold and carb as follows:
Ran the engine at full idle speed (throttle plates totally closed).
Squirted some starter fluid into the carb to make sure it would affect the RPMs.
Removed the wiper vacuum hose and squirted starter fluid in there for the same reason. (Both changed the RPMs)
Reconnected the wiper vacuum hose then sprayed the starter fluid all around the edges of the manifold, where the carburetor connects to it, and around the carburetor throttle shafts. No change in RPM by any of that. Would seem that I have no vacuum leaks causing the rough running.
Other ideas?
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Prof. Henry (The Roaming Gnome) 
"It is good to have an end to journey toward; but it is the journey that matters, in the end.” *Ursula K. Le Guin in The Left Hand of Darkness
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